0  426069  426077  426083  426087  426093  426095  426099  426105  426107  426113  426119  426123  426125  426129  426135  426137  426143  426147  426149  426153  426155  426159  426161  426163  426164  426165  426167  426168  426169  426171  426173  426177  426179  426183  426185  426189  426195  426197  426203  426207  426209  426213  426219  426225  426227  426233  426237  426239  426245  426249  426255  426263  447090 

3.2009年“世界环境日”的主题是:“团结起来应对气候变化”。下列认识不正确的是

  (A)植树造林,严禁乱砍滥伐

  (B)在生产和生活中提倡使用节能技术和节能用具

  (C)提倡乘坐公交车、骑自行车或步行的方式出行

  (D)开发新能源,禁止开采和使用化石燃料

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2.下列有关空气各成分的说法正确的是

  (A)氧气的化学性质比较活泼,属于可燃物

  (B)氮气的化学性质不活泼,可用于食品防腐

  (C)空气质量报告中所列的空气质量级别越大,空气质量越好

  (D)二氧化碳在空气中含量增多会引起温室效应,属于空气污染物

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1.“民以食为天”。下列过程中发生了化学变化的是

  (A)淘米   (B)洗菜   (C)苹果榨汁   (D)葡萄酿酒

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30.      was a well -known fact.

    A.That their team was weak        B.That their team being weak

    C.Their team was weak           D.If their team was weak

[答案]:

1 C     2 B     3 D     4 C     5 D     6 A     7 B     8 B     9 A     10 B

11 B     12 C        13 D        14 D        15 B        16 B        17 B        18 B        19C     20 A

21 B        22 B        23 A        24 C        25 B        26C     27 D        28 C        29 B        30 A

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29.      there is life on another planet is almost impossible.

    A.How                       B.That

    C.Why                       D.Whether

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28.The problem is       will go .

    A.that                       B.that who

    C.who                    D.whoever

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27.      nothing to do with us .

    A.What he did is                B.What he has done

    C.What did he do               D.What he has done has

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26.Word came      I was wanted at the office.

    A.which                      B.why

    C.that                       D.whether

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25.       told yuou that was lying .

    A.who                       B.whoever

    C.Anyone                     D.The person

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24.The town is no longer       it was ten years ago.

    A.which                      B.that

    C.what                   D.when

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